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Battery

Take a look at the Odyssey PC 950. It requires a minor mode to the battery tray but it’s a great battery. Lots of crank power, lots of reserve power, weighs around 20 lbs.
 
And away we go with the Bomb under the hood debate again.
My Odyssey PC 680 started my AEIO 360 with 10:1 pistons every time without breaking a sweat. Under any condition.
I would remove and replace them every 4 years and use the removed one in other non- aviation applications for another 10 years or so.
A PC 950 did the same for my high compression IO540.
I never had a need to remove these long lasting capable batteries and replace them with a toxic fume producing a potential lithium bomb. Especially in a hot engine compartment!
That would be fixing a problem that I didn't have with a dangerous solution.
Educate yourself on the dangers of lithium batteries before bolting one to your firewall.
Please!
 
Chukill said:
And away we go with the Bomb under the hood debate again.
My Odyssey PC 680 started my AEIO 360 with 10:1 pistons every time without breaking a sweat. Under any condition.
I would remove and replace them every 4 years and use the removed one in other non- aviation applications for another 10 years or so.
A PC 950 did the same for my high compression IO540.
I never had a need to remove these long lasting capable batteries and replace them with a toxic fume producing a potential lithium bomb. Especially in a hot engine compartment!
That would be fixing a problem that I didn't have with a dangerous solution.
Educate yourself on the dangers of lithium batteries before bolting one to your firewall.
Please!
Click to expand...
Wow…

You realize that phone you are holding is also a “lithium bomb”, right?

This has been discussed at length…it is obvious now, as it was then, that you are terrified of lithium batteries.

That doesn’t make them bad or unsafe…
 
Or for all you two battery, split buss builders here is a stock RV-10 rear tray modified for two PC-625 batteries, two master solenoids and four 30 amp relays to feed the two panel busses (two relays for normal operations, two relays to support backup modes).

Carl
 

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Chukill said:
I don’t charge my phone while airborne or some other dumb things
Im not terrified, just cautious and informed
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You do know that you're carrying hundreds of pounds of avgas that is highly explosive, right? better keep the tanks dry and admire it in the hangar rather than fly it...!

Everything has inherent risks, is my point. Everything is a cost/risk/time/benefit analysis. Lithium batteries have passed much scrutiny in both automotive as well as the certified aviation world. Like any technology, there are great versions and poorly made (cheap!) versions. Worried about "Tesla" fires? If you did your research, you will find that the rates of fires are far lower than in gasoline powered vehicles, by orders of magnitude.

Do I really need to post videos of how flammable and explosive your fuel is? Your claim to informed is my claim FUD.
 
The goal is risk mitigation, not elimination.
The scrutiny on lithium batteries has resulted in a prohibition on shipping them air freight or in checked baggage.
When those restrictions are removed, you can use that argument.
Once again there is no need for potentially deadly batteries on an aircraft when there are safer alternatives that work very well.
 
Chukill said:
The goal is risk mitigation, not elimination.
The scrutiny on lithium batteries has resulted in a prohibition on shipping them air freight or in checked baggage.
When those restrictions are removed, you can use that argument.
Once again there is no need for potentially deadly batteries on an aircraft when there are safer alternatives that work very well.
Click to expand...
EarthX is the standard battery in the new Cirrus. Banned from the skies?! Far from it. You spread fear, uncertainty, and doubt due to lack of knowledge on the subject. Anyone is free to make their own choices for risk mitigation but the inherent risks of an earthx lithium iron phosphate battery are certainly safe enough for the certified world at this point…

Link for reference: EarthX Cirrus
 
Chukill said:
The goal is risk mitigation, not elimination.
The scrutiny on lithium batteries has resulted in a prohibition on shipping them air freight or in checked baggage.
When those restrictions are removed, you can use that argument.
Once again there is no need for potentially deadly batteries on an aircraft when there are safer alternatives that work very well.
Click to expand...
Instead of throwing around anecdotes and/or forming opinions based upon same, do some quality research. At a minimum, look at the actual regulations as they pertain to transportation of "Lithium". Here ya go:


And - Just to clarify a bit; the type of batteries that we typically install in airplanes are Lithium IRON, (ie. specifically Lithium-Iron-Phospate (LiFePO+)). These are NOT the same as Lithium ION (LiCoO2).
 
Pdp7427 said:
EarthX is the standard battery in the new Cirrus. Banned from the skies?! Far from it. You spread fear, uncertainty, and doubt due to lack of knowledge on the subject. Anyone is free to make their own choices for risk mitigation but the inherent risks of an earthx lithium iron phosphate battery are certainly safe enough for the certified world at this point…

Link for reference: EarthX Cirrus
Click to expand...
I suspect the goal of Cirrus (and most aircraft manufacturers) is to lower empty weight.
 
Walt said:
I suspect the goal of Cirrus (and most aircraft manufacturers) is to lower empty weight.
Click to expand...
I suspect you are correct. But that comes with a host of other benefits as well. Some drawbacks? Perhaps, but not enough to bar it from certification.
 
And - Just to clarify a bit; the type of batteries that we typically install in airplanes are Lithium IRON, (ie. specifically Lithium-Iron-Phospate (LiFePO+)). These are NOT the same as Lithium ION (LiCoO2).
[/QUOTE]

Yes! The voice of reason. Thanks for pointing this out Brian, before this ends up being 30 pages of flaming battery posts!

K
 
I like made in USA, these Deka AGM batteries are the best you can get https://www.amazon.com/Deka-Power-Sports-ETX20L-Battery/dp/B0026H3CB4
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agm-best-jpg.84010
 

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Walt said:
I suspect the goal of Cirrus (and most aircraft manufacturers) is to lower empty weight.
Click to expand...
Weight is one of many benefits. But in the same or smaller form factor you can get a significantly higher capacity battery.

Ask Vans who now includes the Earthx LiFePO+ ETX900 in the RV-12 kit and in their SLSA's it replaced the Odyssey PC680

From the Earthx website:

*The EarthX ETX900 vs. the Odyssey PC680 or ODS-AGM16L​


For comparison purposes only*


  • Voltage: ETX900: 13.2V | PC680: 12V
  • Weight: ETX900: 4.9lbs | PC680: 15.4lbs
  • Ah (1 hour 1C rate): ETX900: 15.6 | PC680: 12.3
  • Cranking Amps (PCA/CCA): ETX900: 840/400 | PC680: 520/170
  • Dimensions (L x W x H): ETX900: 6.5 x 3 x 6.6 | PC680: 7 x 3 x 6.6
  • Overcharge Protection: ETX900: Yes | PC680: No
  • Over Discharge Protection: ETX900: Yes | PC680: No
  • Battery fault indication: ETX900: Yes | PC680: No
  • Short Circuit Protection: ETX900: Yes | PC680: No
 
I Installed this one it was way cheaper than the brand names and it fit well in the tray ....do you get them in the US ?
 

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